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Finding the Fourth Proportional to 201,376.02, 302,061.60 and 51,615.12

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Solution

The fourth proportional to 201,376.02, 302,061.60 and 51,615.12 is: 77,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,376.02 : 302,061.60 = 51,615.12 : x
  2. Step 2: Convert to fraction form
    201,376.02/302,061.60 = 51,615.12/x
  3. Step 3: Cross multiply
    201,376.02x = 302,061.60 × 51,615.12
  4. Step 4: Simplify right side
    201,376.02x = 15,590,945,731.39
  5. Step 5: Solve for x
    x = 15,590,945,731.39/201,376.02
  6. Step 6: Final answer
    x = 77,422.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.